APA-ийн эшлэл(7 дахь хэвлэлт)

Widmeyer, G. R. (1989). DSS-89: Ninth International Conference on Decision Support Systems. The Institute of Management Sciences.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Widmeyer, George R. DSS-89: Ninth International Conference on Decision Support Systems. Providence: The Institute of Management Sciences, 1989.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Widmeyer, George R. DSS-89: Ninth International Conference on Decision Support Systems. The Institute of Management Sciences, 1989.